MINIATURE ISOLATED AC/DC POWER SUPPLY
This entry was posted on Sunday, October 12th, 2008 at 11:56 pm and is filed under power supply. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
Tags: DC Power Supply
This circuit uses a novel approach to produce a fully isolated and regulated 5 volts @30ma from the 120vac power line. It uses two tiny SCRs that alternately discharge two capacitors through a miniature high frequency transformer. The voltage spikes produced through the transformer are rectified, filtered and regulated. A very common 8 ohm audio impedance matching transformer can be used for the transformer. Link
